How does a desiccant dryer work?
In summary, in a desiccant dryer, adsorbing the water vapor onto the large, dry surface area of a highly porous material called desiccant dries the compressed air. This adsorption occurs as water vapor in the compressed air moves into the pores of the dry desiccant and is attracted to the surface of the pores.
How long does air dryer desiccant last?
With proper maintenance of pre-filters, activated alumina desiccant should last up to 5 years in heatless dryers. For heat regenerated dryers the desiccant should last 2 to 3 years. Desiccant can be visually inspected to look for discoloration and oil contamination.
What is desiccant type dryer?
A desiccant dryer or an adsorption dryer is a piece of industrial equipment that uses desiccant materials to eliminated water from the air channeled through it. A standard desiccant dryer system uses a two-tower set up to ensure a continuous air drying cycle.
How do Airdryers work?
A compressed air dryer is a piece of equipment designed to separate water vapor or moisture (de-humidify) from industrial process air. In the typical system, a compressor draws in humid air and compresses it, which raises the air temperature and then cooling the air condensing water vapor out of the unit.
How often should desiccant be changed?
once every three years
We recommend that a desiccant be replaced once every three years for open-cycle systems and once every two years for closed-cycle systems. A desiccant may degrade more quickly depending on the environment where it is used. Dew point temperatures offer a good indication for when to replace your desiccant.
How long will desiccant last?
between 1 and 3 years
The life of these bags depends on the environment that they are exposed to, but most desiccant bags last between 1 and 3 years. When silica gel absorbs moisture, it goes from being in an active state to an inactive state. When this happens, it just needs to be reactivated so that it can be used again.
How does a heat of compression dryer work?
A heat of compression dryer is a type of regenerative desiccant dryer. These machines dry air through adsorption, a chemical process in which a highly porous material attracts and holds on to surrounding water molecules, effectively removing moisture from the air.
Can desiccant go bad?
The silica gel packets – also referred to as desiccant packets or dry packets – do not expire. They are made from a material that will not expire or go bad. But as the silica gel packets are exposed to air and moisture, they will become less effective until eventually, they have totally lost their usefulness.
How often should you change desiccant?
Replacement of desiccant beads is recommended every two years.
What do you need to know about desiccant drying?
Air is first sucked from the hopper to the dryer and sent through the filer and the cooling heat exchanger.
Do I need a refrigerated or desiccant air dryer?
Desiccant dryers can achieve dew points as low as -100. In some facilities, a desiccant air dryer may only be needed for certain applications and processes. As an example, an auto body shop generally will need only a refrigerate air dryer for the tools and general air uses, but will benefit from having very clean and dry air for the paint booth.
What is a continuous use desiccant air dryer?
A desiccant dryer or an adsorption dryer is a piece of industrial equipment that uses desiccant materials to eliminated water from the air channeled through it. A standard desiccant dryer system uses a two-tower set up to ensure a continuous air drying cycle .
How does a compressed air desiccant dryer work?
How a desiccant compressed air dryer works A desiccant dryer usually has two identical towers, filled with desiccant. One tower is used to dry the compressed air, while the other tower is regenerated. Every once in a while (controlled by a central control unit) the dryer switches towers.